>> samsung series 7, this is also gesture, nontouch. it is touch as well. this does a little bit of both. if you're looking for devices -- there are some different combinations, things you can do without touch, things you can do with touch. you don't want to get oil, vinegar all over your keyboard. wave at the computer. >> that's great. this is ingenious. we've been through superstorm sandy here. a lot of people lost power. this is a way to bring light into your life when there is no electricity. >> it's called luminaid. charge it in the sun for five hours. >> pouch that folds flat like this. >> waterproof. you blow it up and it looks like this. then basically to turn on the light it has two settings with this little power button. it will be hard to see maybe in the studio. you can see lights being generated from that. >> you store half a dozen of those and you blow them up at a time when you need them, you've got light in an entire room. >> you do. they're waterproof, puncture proof. two women, one from dartmouth, the other from columbia university came up